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EP0303093B1 - Système de communication pourvu d'un réseau de raccordement en forme de boucle au niveau du rattachement des abonnés d'un central téléphonique digital - Google Patents

Système de communication pourvu d'un réseau de raccordement en forme de boucle au niveau du rattachement des abonnés d'un central téléphonique digital Download PDF

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Publication number
EP0303093B1
EP0303093B1 EP88111980A EP88111980A EP0303093B1 EP 0303093 B1 EP0303093 B1 EP 0303093B1 EP 88111980 A EP88111980 A EP 88111980A EP 88111980 A EP88111980 A EP 88111980A EP 0303093 B1 EP0303093 B1 EP 0303093B1
Authority
EP
European Patent Office
Prior art keywords
network
ring
devices
subscriber
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88111980A
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German (de)
English (en)
Other versions
EP0303093A2 (fr
EP0303093A3 (en
Inventor
Klaus Dipl.-Ing. Kuhlmann
Gerhard Dipl.-Ing. Leibe
Albert Dipl.-Ing. Weiss (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT88111980T priority Critical patent/ATE89974T1/de
Publication of EP0303093A2 publication Critical patent/EP0303093A2/fr
Publication of EP0303093A3 publication Critical patent/EP0303093A3/de
Application granted granted Critical
Publication of EP0303093B1 publication Critical patent/EP0303093B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control

Definitions

  • the invention relates to a communication system according to the preamble of claim 1.
  • Digital, computer-controlled switching devices are predominantly used in private communication systems.
  • the central control device can be implemented using a microprocessor system.
  • This central control device usually communicates directly with a switching matrix device and, in order to relieve the central controller dynamically, via one or more communication sub-controls with several subscriber line devices.
  • These subscriber line devices which are accommodated in special receiving devices, are brought to the subscriber devices via connecting lines by means of suitable transmission methods.
  • the signaling is carried out both with the subscriber device and with the central control by means of suitable hardware or software devices or procedures.
  • the subscriber connection device collects the signaling information received from the subscriber device and, after suitable processing, transmits it to the central control device for further processing. Analogously, the communication takes place in the opposite direction of transmission.
  • the central control essentially carries out the switching tasks - e.g. B. Determination of the switching matrix setting based on the called subscriber number - by.
  • the switching device and the system components in the subscriber access area are operated, managed and monitored with an operating terminal which communicates with the switching device - essentially with the controls of the switching device - via a special connection or via a subscriber connection.
  • Such operating or monitoring functions are, for example, changing subscriber-specific data in the database, loading the memory of the implemented processor systems with semi-permanent or permanent data when commissioning failed system components or for updating, displaying errors on the operating terminal and automatically starting error localization and analysis procedures.
  • local networks so-called “local area networks” have been increasingly used in addition to the conventional private branch exchange system networks.
  • Most of these local networks represent independent communication networks; for example, a large number of terminals communicate both with one another and with a central computer device. With increasing transmission speeds of the information, more and more circular local networks are preferred.
  • bus networks a point-to-point connection is arranged between the individual subscriber devices. This means that transmission media - e.g. B. fiber optic transmission systems - can be used on the information with very high transmission speeds, for. B. 100 Mbit / s, are transferable.
  • the transmission capacity of a ring-shaped network is divided.
  • a switching range can be defined in which a certain partial capacity - e.g. B. 64 kbit / s - a switching subscriber is allocated for the duration of a connection.
  • a package area can be defined for package-transmitting participants.
  • the object of the invention is to include an annular network while maintaining as many software and hardware components of the existing networks as possible and with as few additional devices and methods to be developed as possible as a feeder network in the network of a switching device.
  • the object is achieved on the basis of the communication system defined at the outset in the preamble of claim 1 by the characterizing features of claim 1.
  • the communication system it is particularly advantageous to maintain all system components of the switching device and the ring-shaped network.
  • the subscriber line devices in the receiving device are only replaced by the gateway device, the subscriber line devices being used unchanged in an external receiving device.
  • the ring network access devices of the ring-shaped network - usually implemented on one or more modules - can continue to be used unchanged and are in the gateway and external receiving device housed.
  • the two conversion devices and the external recording device must be redeveloped with regard to hardware and software.
  • the extent to which the operating, maintenance and monitoring software of the existing system components of the ring-shaped network and the switching device network can continue to be used depends essentially on the planned operating, management and monitoring concept for the complete communication system and on the behavior of the gateway device towards the switching device .
  • the selection of which system components manage, operate and monitor is to be defined at the beginning of a development and is determined by the factors such as development effort, ease of use, uniform monitoring philosophy, customer requests, etc.
  • all network components of the ring-shaped network as well as the gateway adaptation and external subscriber devices in the gateway device and the switching device are operated, managed and monitored in the same.
  • the software for operating, managing and monitoring the ring-shaped network can be almost completely adopted into the gateway device with a certain implementation effort.
  • the software for operating, managing and monitoring the conversion devices and the subscriber line devices accommodated in the external receiving devices must be developed and introduced. In particular, these are known methods, such as. B. Loading the semi-permanent or permanent data into the memory of the peripheral processor systems or error detection, display and localization methods in the additional system components.
  • This variant includes self-contained subnetworks that are operated, managed and monitored. Functional overlaps or error propagation are therefore not possible, but this can only be achieved with increased effort.
  • the advantageous development of the invention according to claim 4 shows the third variant with regard to operating, managing and monitoring the two communication networks.
  • the ring-shaped network - including ring switching and ring network access devices - is operated, managed and monitored by the gateway device, ie the software already existing and intended for this purpose can be adopted unchanged into the gateway device except for a certain implementation effort.
  • the gateway device ie the software already existing and intended for this purpose can be adopted unchanged into the gateway device except for a certain implementation effort.
  • All system components that are required even without inserting a ring-shaped network and additionally the two conversion devices are operated, managed and monitored, ie Existing software must be expanded to include the needs of the two implementation facilities.
  • This variant can be implemented with the least additional software effort.
  • Operating, managing and monitoring via two independent operating terminals with possibly different human-machine languages (MMI) has a disadvantageous effect here.
  • the gateway device represents on the exchange side, in terms of addressing, signaling and physical interfaces, either a subscriber connection device with nxm connected subscriber devices or n subscriber connection devices, each with m connected subscriber devices.
  • a distribution device indirectly the communication control — of the switching device is simulated on the subscriber connection device side in both variants.
  • no software change with regard to addressing is required, since the gateway device behaves as if n subscriber line devices were connected, ie it can be reached by the switching device at the same addresses that would be provided if n subscriber line devices were connected.
  • the more advantageous method - see claim 5 - requires a software change with regard to the addressing of the switching device.
  • the advantage to be achieved in this way is that the subscriber device address can be transmitted directly without having to specifically address the corresponding subscriber line device.
  • the message information in the switching information area and the signaling information in the packet information area of the ring information transmission capacity are transmitted.
  • This division is in packet-oriented signaling information transmission - z. B. with ISDN subscriber signaling - advantageous, since otherwise a signaling channel must be constantly reserved in the switching information area. Details of this embodiment of the invention can be found in U.S. Patent No. US-A-4,661,952.
  • the block diagram shows the system components necessary for the explanation of a communication system which is formed from a switching device VE, a ring-shaped network RN and an external recording device AEE.
  • the switching device VE contains a switching matrix device SWE, a central controller ZST, at least one communication controller IOP and at least one receiving device AE.
  • Central control ZST, switching matrix device SWE and the communication controls IOP communicate via a first local bus system LB1.
  • a communication controller IOP which dynamically relieves the central controller ZST, is connected to a specific number n of subscriber line devices SLM via a second local bus system LB2 and via distribution devices VTE arranged in the receiving devices AE.
  • the second local bus system LB2 is connected in parallel to the n - z. B.
  • six - subscriber line equipment SLM The distribution device VTE can be implemented, for example, in the form of a rear wall wiring of a receiving device AE.
  • Several - for example eight - subscriber devices SE can be connected to each of the subscriber line devices SLM via connecting lines ASL.
  • everyone is Subscriber connection device SLM connected to the switching matrix device SWE via the distribution device VTE with two, a transmission speed of 2.048 Mbit / s and PCM-oriented connections.
  • the signaling information to be transmitted from or to the subscriber device SE is collected in the subscriber line device SLM, processed and transmitted to the communication control IOP or subscriber device SE via the second local bus system LB2 or via the connection line ASL. From the transmitted signaling information - for example the call number - the central control ZST determines suitable setting information for the switching matrix device SWE and forwards this via the first local bus system LB1 to the switching matrix device SWE.
  • the message channels brought up to the switching network device SWE via the subscriber line devices SLM - in ISDN networks the B channels - are connected to one another in the switching network device SWE in accordance with the dialed numbers and switched through to the subscriber line devices SLM after the central control system ZST has been informed accordingly.
  • packet-oriented transmission methods for example HDLC transmission methods - are provided for the first and second local bus systems LB1, LB2.
  • Such a communication system is also known from a publication by Siemens, "ISDN in the Office", 'Special Issue of telcom report and Siemens Magazine COM'.
  • a gateway device GWE is arranged instead of the subscriber line devices SLM.
  • This gateway device GWE is formed from a conversion device UE-GW and a ring network access device RN-ZE.
  • the conversion device UE-GW is connected to the communication controller via one of the n distribution device connections IOP - for example communication control IOP1 - as well as with two 2.048 Mbit / s inputs - for example inputs 3 and 4 - of the switching network device SWE.
  • the signaling and message transmission procedures used in the switching device VE are adapted to the initially required procedures of the ring network access device RN-ZE.
  • this ring network access device RN-ZE the access of a gateway device GWE to a ring-shaped network RN is controlled. This access takes place, for example, according to an access protocol in accordance with the ANSI / IEEE standard protocol 802.5.
  • the ring network access device RN-ZE is connected via a stub line SL to a ring coupling device RCB, wherein the ring coupling device RCB can also be integrated in the gateway device GWE.
  • the ring coupling device RCB is inserted into the ring line RL of an annular network.
  • the ring line RL can be implemented, for example, by means of optical fiber.
  • the ring line RL arriving according to the transmission direction is to be equipped with an optical receiver device and the outgoing ring line RL is to be equipped with an optical transmitter device.
  • a plurality of such ring coupling devices RCB are connected to one another via appropriately arranged ring lines RL - forming an annular network RN.
  • An external receiving device AEE is connected to one of the further ring coupling devices RCB via a stub line SL.
  • An adapter APE and a plurality of subscriber line devices SLM that can be connected to the adapter APE are arranged in this external receiving device AEE.
  • the adaptation device APE is in turn formed from a ring network access device RN-ZE and an external conversion device UEE.
  • the ring network access control RN-ZE in turn controls access to the ring-shaped network RN and the external conversion device UEE also adapts the signaling and transmission procedures to the input conditions of the subscriber line device SLM.
  • the subscriber line equipment SLM are over accordingly arranged connecting lines ASL connected to the subscriber equipment SE.
  • the subscriber devices SE can be implemented, for example, by ISDN subscriber devices, such as multifunctional terminals. Instead of the subscriber equipment SE, corresponding connecting lines can be connected in the sense of a connection to a public or a further private telecommunications network.
  • a ring-shaped network with the properties explained above is also known from US Pat. No. US-A-4,661,952.
  • the conversion device UE-GW in the gateway device GWE can behave in relation to a communication controller IOP either like n subscriber line devices SLM, each with m subscriber device connections, or as a single subscriber line device SLM with n x m subscriber device connections. If the conversion device UE-GW represents n subscriber line devices SLM - this is assumed in the exemplary embodiment, the communication controller IOP can address the gateway device GWE like subscriber line devices SLM, which means that no special addressing software is required in the communication controller IOP. However, special address recognition software must be developed for the UE-GW conversion device.
  • the conversion device UE-GW behaves like a single subscriber line device SLM with nxm subscriber line connections, the special address recognition software in the conversion device UE-GW is omitted, but in the communication controller IOP the software for forming the addresses when driving the gateway device must be used GWE can be hidden and thus modified.
  • the operation, the administration and the monitoring of the ring-shaped network RN and the switching device network can either be carried out centrally by the switching device VE, in each case for connected power supply units or for each network independently of one another respectively.
  • Which concept is to be implemented essentially depends on the requirements of the network operator and the development effort for the respective concept.
  • ring networks RN inserted as feeder networks in the subscriber access area of a switching center VE it seems sensible to operate, manage and monitor both networks independently of one another, since the inserted ring-shaped network RN and the gateway and adaptation device GWE, APE for the switching center VE as one or several line sections connected in series is to be viewed.
  • both networks can use the existing error detection mechanisms to determine the failure of the other network and initiate and execute the corresponding decommissioning or commissioning in their own network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Claims (7)

  1. Système de communication comportant
    un dispositif numérique de commutation (VE)
    - qui est muni d'un système de bus local (LB1), par lequel un dispositif central de commande (ZST) communique avec un dispositif à réseau de connexion (SWE) réalisé sous la forme d'un circuit multiple à position temporelle, et avec au moins une unité de commande de communication (IOP),
    - qui est muni d'un autre système de bus local (LB2), par lequel l'unité de commande de communication communique avec des dispositifs de raccordement d'abonnés disposés dans des dispositifs de réception (AE),
    - qui comporte, dans le dispositif de réception (AE), un dispositif de répartition (VTE), qui répartit parallèlement, entre n bornes du dispositif de raccordement d'abonnés, aussi bien le système de bus qui provient de l'unité de commande de communication, qu'au moins un canal de transmission d'informations fonctionnant en mode MIC et provenant de bornes du dispositif à réseau de connexion (SWE)
    - et aux dispositifs (SLM) de raccordement d'abonnés duquel respectivement m dispositifs d'abonnés peuvent être reliés par des lignes de raccordement mettant en oeuvre des procédés de transmission analogique ou numérique,
    et un réseau en anneau (RN) retransmettant les informations par paquets,
    - qui est inséré, en tant que réseau d'entrée, dans la zone du poste de raccordement d'abonné du dispositif de commutation,
    - dans la ligne anneau (RL) duquel sont insérés plusieurs dispositifs de couplage en anneau (RCB), auxquels sont reliés, par l'intermédiaire de lignes de dérivation, des dispositifs (RN-ZE) d'accès au réseau en anneau
    - et aux dispositifs (RN-ZE) d'accès au réseau en anneau duquel peut être relié respectivement au moins un dispositif d'abonné du réseau en anneau,
    et des dispositifs matériels et des procédures logicielles dans les composants du système des deux réseaux de communication, à l'aide dasquels le système de communication est rendu opérant, est géré et est contrôlé,
    caractérisé par le fait
    - que, dans un dispositif de réception (AE), est disposé, à la place des dispositifs (SLM) de raccordement d'abonnés, un dispositif d'accès gateway (GWE) qui est formé d'un dispositif de conversion (UE-GW) et d'un dispositif (RN-ZE) d'accès au réseau en anneau et qui connecte le réseau de dispositifs de commutation au réseau en anneau (RN),
    - que le dispositif d'accès gateway (GWE) est relié au dispositif de commutation (VE), par l'intermédiaire du dispositif de conversion (UE-GW), qui adapte les informations de signalisation et les informations de données aux procédures de raccordement du dispositif de raccordement d'abonnés,
    - que le dispositif d'accès gateway (GWE) est relié au dispositif de couplage en anneau (RCB), par l'intermédiaire du dispositif (RN-ZE) d'accès au réseau en anneau, qui adapte les informations de signalisation et les informations de données aux procédures de retransmission des le réseau en anneau,
    - que, dans le réseau en anneau (RN), est placé au moins un autre dispositif de couplage en anneau (RCB), auquel est associé, par l'intermédiaire d'une ligne de dérivation (SL), un dispositif externe de réception (AEE), qui est muni également d'un dispositif (RN-ZE) d'accès au réseau, d'un dispositif externe de conversion(UEE) et au maximum de n dispositifs (SLM) de raccordement d'abonnés,
    - que les dispositifs externes d'abonnés (SE), qui peuvent être reliés aux dispositifs d'abonnés (SE) du réseau de dispositifs de commutation, sont reliés aux dispositifs (SLM) de raccordement d'abonnés, par l'intermédiaire de lignes de raccordement, et
    - que le réseau en anneau (RN) et le réseau de dispositifs de commutation sont rendus opérants, sont gérés et sont contrôlés par le dispositif de commutation (VE) et/ou par le dispositif d'accès gateway (GWE).
  2. Système de communication suivant la revendication 1, caractérisé par le fait que tous les composants de système du réseau en anneau (RN) et du réseau de dispositifs de commutation sont rendus opérants, sont gérés et sont contrôlés, d'une manière centralisée, par le dispositif de commutation (VE).
  3. Système de communication suivant la revendication 1, caractérisé par le fait que, dans le dispositif d'accès gateway (GWE), tous les composants du réseau en anneau (RN) ainsi que le dispositif d'accès gateway (GWE), le dispositif d'adaptation (APE) les dispositifs externes (SLM) de raccordement d'abonnés, et le dispositif de commutation (VE) sont rendus opérants, sont gérés et sont contrôlés par le dispositif de commutation (VE).
  4. Système de communication suivant la revendication 1, caractérisé par le fait que les dispositifs de couplage en anneau (RCB), les dispositifs (RN-ZE) d'accès au réseau en anneau placés dans le dispositif d'accès (GWE) gateway et les dispositifs de conversion (UE-GW, UEE) ainsi que les dispositifs externes (SLM) de raccordement d'abonnés et les composants de système du réseau de dispositifs de commutation sont rendus opérants, sont gérés et sont contrôlés par le dispositif de commutation (VE).
  5. Système de communication suivant l'une des revendications précédentes, caractérisé par le fait que le dispositif d'accès gateway (GWE) représente, côté dispositif de commutation et en ce qui concerne les interfaces d'adressage et de signalisation et les interfaces physiques, un dispositif (SLM) de raccordement d'abonnés à n x m bornes de dispositifs d'abonnés.
  6. Système de communication suivant la revendication 1, 2, 3 ou 4, caractérisé par le fait que le dispositif d'accès gateway (GWE) représente, côté dispositif de commutation et en ce qui concerne les interfaces d'adressage et de signalisation et les interfaces physiques, n dispositifs (SLM) de raccordement d'abonnés comportant respectivement m dispositifs d'abonnés raccordés (SE), et que le dispositif d'adaptation (APE) représente, côté dispositif de raccordement d'abonné, un dispositif de répartition (VTE) du dispositif de commutation (VE).
  7. Système de communication suivant la revendication 1, caractérisé par le fait que la capacité de transmission d'informations des réseaux en anneau (RN) peut être subdivisée en une zone d'informations d'interconnexion directe et en une zone d'informations en paquets et que les informations de données, qui doivent être transmises entre un dispositif d'abonné (SE) et un dispositif de commutation (VE), sont retransmises dans la zone d'informations d'interconnexion et que les informations de signalisation sont retransmises dans la zone d'informations en paquets.
EP88111980A 1987-08-11 1988-07-25 Système de communication pourvu d'un réseau de raccordement en forme de boucle au niveau du rattachement des abonnés d'un central téléphonique digital Expired - Lifetime EP0303093B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111980T ATE89974T1 (de) 1987-08-11 1988-07-25 Kommunikationssystem mit einem als zubringerkommunikationsnetz vorgesehen ringfoermigen netz im teilnehmeranschlussbereich einer digitalen vermittlungseinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3726716 1987-08-11
DE3726716 1987-08-11

Publications (3)

Publication Number Publication Date
EP0303093A2 EP0303093A2 (fr) 1989-02-15
EP0303093A3 EP0303093A3 (en) 1990-06-06
EP0303093B1 true EP0303093B1 (fr) 1993-05-26

Family

ID=6333528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111980A Expired - Lifetime EP0303093B1 (fr) 1987-08-11 1988-07-25 Système de communication pourvu d'un réseau de raccordement en forme de boucle au niveau du rattachement des abonnés d'un central téléphonique digital

Country Status (6)

Country Link
US (1) US4908824A (fr)
EP (1) EP0303093B1 (fr)
JP (1) JPH0634538B2 (fr)
AT (1) ATE89974T1 (fr)
DE (1) DE3881297D1 (fr)
ES (1) ES2042656T3 (fr)

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JPH02161854A (ja) * 1988-12-14 1990-06-21 Hitachi Ltd 伝送制御手順選択方式
GB2240008B (en) * 1990-01-11 1993-12-22 Stc Plc Telecommunications systems
DE59008668D1 (de) * 1990-06-26 1995-04-13 Siemens Ag Programmgesteuerte Kommunikationsanlage.
ES2099111T3 (es) * 1990-08-29 1997-05-16 Siemens Ag Sistema de transmision para redes de conexion en redes de comunicacion.
US5283781A (en) * 1991-12-23 1994-02-01 Square D Company Apparatus for receiving and modifying a serial data packet from a communications network to indicate its status
JP3426829B2 (ja) * 1995-12-28 2003-07-14 株式会社日立コミュニケーションテクノロジー ディーリング通話システムのディーリング通話端末装置の遠隔制御方法
US6331985B1 (en) 1997-08-21 2001-12-18 Adc Telecommunications, Inc. Telecommunication network with variable address learning, switching and routing
US6154462A (en) * 1997-08-21 2000-11-28 Adc Telecommunications, Inc. Circuits and methods for a ring network
US6049824A (en) * 1997-11-21 2000-04-11 Adc Telecommunications, Inc. System and method for modifying an information signal in a telecommunications system
US6389030B1 (en) 1998-08-21 2002-05-14 Adc Telecommunications, Inc. Internet access over a ring network
US6539546B1 (en) 1998-08-21 2003-03-25 Adc Telecommunications, Inc. Transport of digitized signals over a ring network
US6570880B1 (en) 1998-08-21 2003-05-27 Adc Telecommunications, Inc. Control data over a ring network
DE10122422A1 (de) 2001-05-09 2002-11-21 Siemens Ag Verfahren und Vorrichtung zum Einstellen der Bandbreite einer Verbindung zwischen mindestens zwei Kommunikationsendpunkten in einem Datennetz

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JPS5917751A (ja) * 1982-07-21 1984-01-30 Hitachi Ltd デ−タ通信方式
DE3304823A1 (de) * 1983-02-11 1984-08-16 Siemens AG, 1000 Berlin und 8000 München Verfahren fuer eine fernmelde-, insbesondere fernsprechnebenstellenanlage mit einem datenuebertragungsleitungssystem, insbesondere mit einem optischen datenuebertragungsleitungssystem
US4587651A (en) * 1983-05-04 1986-05-06 Cxc Corporation Distributed variable bandwidth switch for voice, data, and image communications
US4768190A (en) * 1986-04-30 1988-08-30 Og Corporation Packet switching network

Also Published As

Publication number Publication date
JPS6468095A (en) 1989-03-14
EP0303093A2 (fr) 1989-02-15
JPH0634538B2 (ja) 1994-05-02
ATE89974T1 (de) 1993-06-15
DE3881297D1 (de) 1993-07-01
EP0303093A3 (en) 1990-06-06
ES2042656T3 (es) 1993-12-16
US4908824A (en) 1990-03-13

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